myfunc.c

#include <stdint.h>
#include <stdio.h>

long int globl_cnt = 3;

void myfunc() {
  int32_t a; // variable initialized with the value of %edi register
  int64_t b = 0;
  int32_t c = 0;

  if(c - a < 0) {
    b = c * a + b;
    if(c & 1) {
      globl_cnt += b;
    }
    else {
      globl_cnt -= b;
      c++;
    }
  }

  printf("a=%d, b=%ld, c=%d\nglobl_cnt=%ld\n", a, b, c, globl_cnt);
}

int main(int argc, char const *argv[]) {
  myfunc();
  return 0;
}